用于多组分分离的中间取料矩形级联的优化设计  

Optimization of Square Cascade With Additional Withdrawal for Multi-component Separation

作　　者：宋天明[1] 曾实[1] 

机构地区：[1]清华大学工程物理系,北京100084

出　　处：《原子能科学技术》2008年第9期773-777,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(10375033)

摘　　要：多组分同位素混合物的某一中间组分通常在分离级联的中间某级达到峰值,但一般的级联均采用从级联组两端取出产品和废料的工艺。为得到丰度较高的中间组分产品,最好在级联中间取料。本工作研究矩形级联中使用中间取料方式以提高级联分离的中间组分丰度。通过数值模拟计算和数值优化,研究了级联两端取料量和级联供取料位置等参数对中间取料中目标组分丰度的影响。采用单参数分析,估计了级联各参数的取值范围以及它们对目标组分丰度的影响。通过优化计算,在供料丰度和流量不变、产品流量不变的情况下,得到了可以生产更高丰度中间组分产品的级联。The maximum concentration of a middle component in a multi-component separation cascade is usually located in the middle of the cascade. Most separation cascades have their product and waste withdrawals at the two ends. The paper presents the results of a numerical study on obtaining higher concentration of a middle component in the product through an additional withdrawal flow in the middle of a square cascade while keeping usual withdrawals at the two ends. Parameters were first analyzed indi- vidually to estimate their bounds and to study their influences on the concentration of the target component. Based on the numerical simulation and optimization, a cascade with higher product concentration in the additional middle withdrawal was obtained with the original feed and product flow rates unchanged.

关 键 词：同位素分离 多组分分离 中间取料 分离级联 

分 类 号：TL25[核科学技术—核燃料循环与材料]